类Test定义如下，将下列( )方法插入③行处是不合法的。 ① public class Test ② public float Method (float a,float b) ③ ④
A．public float Method (float a,float b,float c)
B．pubic float Method(floatc,floatd)
C．public int Method (int a,int b)
D．pivate float Method (int a,int b,int c)